Opinion: A finger on the pulse of Alberta’s legume crops

Pulses may be at the centre of a trade tiff between Canada and India, but they’re also the focus of some very important research to improve your health.

Pulse is a term used for the dried seeds of plants in the legume family – beans, peas, lentils and chickpeas.

Canada exports pulse crops worth $4.2 billion a year to 130 countries. And one-third of Canada’s pea crop comes from Alberta.

Pulses are high in protein, fibre, iron and other nutrients and Canada’s Food Guide recommends them as a good alternative to meat.

Or, as Dr. Rhonda Bell proclaims, “They really are an all over amazing food to include in our diet.”

Bell is a professor of human nutrition in the Department of Agricultural Food and Nutritional Science at the University of Alberta. A lot of her research looks at the role nutrition plays in the prevention and treatment of disease, with a particular emphasis on diabetes.

One of her recent projects has attempted to quantify the health claims made about beans and peas. Funding for the research came from Alberta Innovates and Alberta Pulse Growers.

Bell’s study shows that beans have a positive effect on lowering a person’s lipid and glucose levels, and peas can help reduce blood pressure.

Her team involved researchers with interests in food science, nutrition, biochemistry and metabolomics. They tested a number of pulses: navy beans, black beans, pinto beans, great northern beans, yellow peas and green peas.

Bell says it was important to prepare the pulses in a way that made them both tasty and practical to deliver, and in a controlled manner that would avoid spurious results.

“They came up with a series of soups and stews that had identical background foods. Then into those identical backgrounds of soups and stews, we added either beans or dried peas, or we used rice as our control food.”

The soups and stews were cooked and packaged according to strict protocols in the test kitchen on the U of A campus. Each serving contained about three-quarters of a cup of beans and peas, the amount recommended by Canada’s Food Guide.

“Participants came in for a baseline visit and then we’d give them three weeks worth of frozen soups and stews. Then they came back for a three-week visit and we gave them three more weeks worth,” says Bell.

“We had absolutely terrific adherence to our protocol. And I think, in all honesty, people got a little bit tired of having the same five soups every day, five days a week for six weeks.”

The study involved 180 people over a six-week period at the University of Alberta and the University of Manitoba. The participants all had what Bell calls “mild hypercholesterolemia.”

These people are just under the radar. As Bell explains, “We think this is a very important group because their lipids aren’t so high that they would immediately get a drug therapy from their physician. They are probably in a position where if they got their blood tested, their doctors might suggest they be more active and eat better to see whether they could bring down their levels before prescribing drugs.”

Bell’s study provides good news for people who hope to avoid developing diabetes and cardiovascular disease.

“It turns out our beans in particular have a lipid-lowering effect. They also have a glucose-lowering effect. So even though our patients didn’t have diabetes, their glucose got just a little bit better,” says Bell.

“Interestingly, the peas had a positive effect on lowering people’s blood pressure. Again, just a little bit. These people were not hypertensive before they came into the study but just to the point again where you would say that they showed an improvement in overall health.

“So those were our two most exciting findings on the clinical side of things.”

Bell says the next steps include metabolomics analysis to track and profile the digestion of beans and peas. There’s interest in how pulses might influence the intestinal microbiome. And one suggestion is to enlist the aid of grocers and pharmacists to dispense healthy advice about pulses at the point of sale.

Our grandmothers used to say that an apple a day keeps the doctor away. Dr. Rhonda Bell might also offer you a nice hot bowl of bean soup.

Troy Media columnist and veteran broadcast journalist Cheryl Croucher produces InnovationAnthology.com.

Just Posted

Art Battle Red Deer to support Women of Excellence Awards

Art Battle Red Deer will be April 6 at the Radisson Hotel

Eliminating racial discrimination events in Red Deer this week

Two upcoming events aim to inspire change and eliminate racial discrimination in… Continue reading

Outfitter facing Wildlife Act charges

It is alleged archery-only hunting licences used out of season

Sunnybrook pies in demand

Just in time for Easter

Red Deer’s Chopped Canada winner takes break from restaurant business

Pete Sok closes Sophear, but plans to eventually relocate

WATCH: Red Deerians can have a say about crime fighting

Municipality will poll citizens about policing priorities

21-year-old charged with drug trafficking in Rocky Mountain House

RCMP seized drugs after conducting a traffic stop and charged a 21-year-old… Continue reading

Liberal bill would tighten controls on sale, licensing of firearms

OTTAWA — Gun retailers would be required to keep records of firearms… Continue reading

Alberta factoring in Trans Mountain pipeline in budget forecasts

EDMONTON — Finance Minister Joe Ceci says Alberta will rely on anticipated… Continue reading

Pooches and pickup truck stolen in Edmonton found in Rimbey

Two old English bulldogs named Rocky and Jersey who were in a… Continue reading

Statistics Canada reports wholesale sales up 0.1 per cent in January

OTTAWA — Statistics Canada says wholesale sales rose 0.1 per cent to… Continue reading

Right whale deaths cost Gulf snow crab fishery its designation as sustainable

HALIFAX — An international organization has suspended a sustainability certificate for the… Continue reading

Financial watchdog says controls to mitigate sales risk at banks ‘insufficient’

TORONTO — Canada’s financial consumer watchdog says there are “insufficient” controls in… Continue reading

Sheriff official: 3 injured in Maryland high school shooting

GREAT MILLS, Md. — A shooting at a Maryland high school Tuesday… Continue reading

Most Read

Five-day delivery plus unlimited digital access for $185 for 260 issues (must live in delivery area to qualify) Unlimited Digital Access 99 cents for the first four weeks and then only $15 per month Five-day delivery plus unlimited digital access for $15 a month